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Finding the Fourth Proportional to 68,927.10, 103,390.65 and 27,374.10

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Solution

The fourth proportional to 68,927.10, 103,390.65 and 27,374.10 is: 41,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,927.10 : 103,390.65 = 27,374.10 : x
  2. Step 2: Convert to fraction form
    68,927.10/103,390.65 = 27,374.10/x
  3. Step 3: Cross multiply
    68,927.10x = 103,390.65 × 27,374.10
  4. Step 4: Simplify right side
    68,927.10x = 2,830,225,992.17
  5. Step 5: Solve for x
    x = 2,830,225,992.17/68,927.10
  6. Step 6: Final answer
    x = 41,061.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.